Title (en)

SYSTEM FOR INCREASING FLOW UNIFORMITY

Title (de)

SYSTEM ZUR ERHÖHUNG DER DURCHFLUSSEINHEITLICHKEIT

Title (fr)

SYSTEME D'AMELIORATION DE L'UNIFORMITE D'UN ECOULEMENT

Publication

EP 0781380 A4 19990414 (EN)

Application

EP 95932436 A 19950908

Priority

• US 9511380 W 19950908
• US 30567794 A 19940912

Abstract (en)

[origin: WO9608653A1] A pumping mechanism (42) moving in movement increments (80) is controlled to space those movement increments in direct proportion to the volume (76) resulting from each movement increment. In a further aspect, movement increments are grouped to result in approximately equal volumes per group. The mechanism moves continuously through the movement increments in each group. Groups are spaced to result in approximately equal flow volumes per group. The number of groups decreases as the flow rate increases. The number of movement increments in each group and the volume of each group increase as the flow rate increases.

IPC 1-7

F04B 49/00

IPC 8 full level

A61M 5/168 (2006.01); F04B 43/08 (2006.01); F04B 43/12 (2006.01); F04B 49/06 (2006.01)

CPC (source: EP US)

A61M 5/16831 (2013.01 - EP US); F04B 43/082 (2013.01 - EP US); F04B 49/065 (2013.01 - EP US); F04B 2203/0213 (2013.01 - EP US)

Citation (search report)

• [X] US 4731057 A 19880315 - TANAKA SHIGERU [JP], et al
• [YA] DE 3247313 A1 19840628 - IVAC CORP [US]
• [Y] US 5322422 A 19940621 - NATWICK VERNON R [US], et al
• [A] US 4869646 A 19890926 - GORDON MARK G [US], et al
• [A] US 4952124 A 19900828 - OGAMI MITSUJI [JP]
• [A] US 3726613 A 19730410 - VON CASIMIR W
• See references of WO 9608653A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9608653 A1 19960321; AT E216756 T1 20020515; CA 2199405 A1 19960321; CA 2199405 C 20010206; DE 69526508 D1 20020529; DE 69526508 T2 20021212; DE 781380 T1 19980514; EP 0781380 A1 19970702; EP 0781380 A4 19990414; EP 0781380 B1 20020424; ES 2110935 T1 19980301; GR 970300053 T1 19980331; JP 3150977 B2 20010326; JP H10502431 A 19980303; US 5716194 A 19980210

DOCDB simple family (application)

US 9511380 W 19950908; AT 95932436 T 19950908; CA 2199405 A 19950908; DE 69526508 T 19950908; DE 95932436 T 19950908; EP 95932436 A 19950908; ES 95932436 T 19950908; GR 970300053 T 19980331; JP 51025096 A 19950908; US 30567794 A 19940912